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With the advent of quantum computing, and other advancements in computation and processing capabilities of modern systems, there arises a need to develop new trapdoor functions that will serve as the foundation for a new generation of…

Cryptography and Security · Computer Science 2020-08-13 Unnikrishnan Menon , Atharva Hudlikar , Divyani Panda

Coding/decoding algorithms are of great importance to help in improving information security since information security is a more significiant problem in recent years. In this paper we introduce two new coding/decoding algorithms using…

Cryptography and Security · Computer Science 2021-01-12 Sümeyra UçAr , Nihal Taş , Nihal Yilmaz Özgür

In this paper we present a new method of coding/decoding algorithms using Fibonacci $Q$-matrices. This method is based on the blocked message matrices. The main advantage of our model is the encryption of each message matrix with different…

Information Theory · Computer Science 2017-12-07 Nihal Taş , Sümeyra Uçar , Nihal Yilmaz Özgür , Öznur Öztunç Kaymak

Cryptography is the science of using mathematics to encrypt and decrypt data. Cryptography enables you to store sensitive information or transmit it across insecure networks so that it cannot be read by anyone except the intended recipient.…

Cryptography and Security · Computer Science 2011-10-10 Penmetsa V. Krishna Raja , A. S. N. Chakravarthy , P. S. Avadhani

This paper proposes a new block cipher termed as "Modular Arithmetic based Block Cipher with Varying Key-Spaces (MABCVK)" that uses private key-spaces of varying lengths to encrypt data files. There is a simple but intelligent use of theory…

Cryptography and Security · Computer Science 2012-03-28 Abhijit Chowdhury , Angshu Kumar Sinha , Saurabh Dutta

Cryptographic primitives have been used for various non-cryptographic objectives, such as eliminating or reducing randomness and interaction. We show how to use cryptography to improve the time complexity of solving computational problems.…

Cryptography and Security · Computer Science 2025-04-23 Vinod Vaikuntanathan , Or Zamir

In this paper, we have proposed a public key cryptography using recursive block matrices involving generalized Fibonacci numbers over a finite field Fp. For this, we define multinacci block matrices, a type of upper triangular matrix…

Cryptography and Security · Computer Science 2022-04-20 Munesh Kumari , Jagmohan Tanti

In this paper, a new image encryption scheme using a secret key of 144-bits is proposed. In the substitution process of the scheme, image is divided into blocks and subsequently into color components. Each color component is modified by…

Cryptography and Security · Computer Science 2012-04-10 Narendra K Pareek

This paper proposes to put forward an innovative algorithm for symmetric key block cipher named as "Triple Prime Symmetric Key Block Cipher with Variable Key-Spaces (TPSKBCVK)" that employs triple prime integers as private key-spaces of…

Cryptography and Security · Computer Science 2012-03-19 Abhijit Chowdhury , Angshu Kumar Sinha , Saurabh Dutta

Cryptography protects users by providing functionality for the encryption of data and authentication of other users. This technology lets the receiver of an electronic message verify the sender, ensures that a message can be read only by…

Cryptography and Security · Computer Science 2011-10-10 Penmetsa V. Krishna Raja , A. S. N. Chakravarthy , P. S. Avadhani

Encrypted computation opens up promising avenues across a plethora of application domains, including machine learning, health-care, finance, and control. Arithmetic homomorphic encryption, in particular, is a natural fit for cloud-based…

Cryptography and Security · Computer Science 2024-10-29 Janis Adamek , Philipp Binfet , Nils Schlüter , Moritz Schulze Darup

In this paper, we propose a new key-based defense focusing on both efficiency and robustness. Although the previous key-based defense seems effective in defending against adversarial examples, carefully designed adaptive attacks can bypass…

Computer Vision and Pattern Recognition · Computer Science 2023-09-06 AprilPyone MaungMaung , Isao Echizen , Hitoshi Kiya

Password security has been compelled to evolve in response to the growing computational capabilities of modern systems. However, this evolution has often resulted in increasingly complex security practices that alienate users, leading to…

Cryptography and Security · Computer Science 2025-10-14 Tonmoy Ghosh

In this paper, we propose a novel defensive transformation that enables us to maintain a high classification accuracy under the use of both clean images and adversarial examples for adversarially robust defense. The proposed transformation…

Computer Vision and Pattern Recognition · Computer Science 2020-10-05 MaungMaung AprilPyone , Hitoshi Kiya

With the surge of the powerful quantum computer, lattice-based cryptography proliferated the latest cryptography hardware implementation due to its resistance against quantum computers. Among the computational blocks of lattice-based…

Cryptography and Security · Computer Science 2022-08-31 Antian Wang , Weihang Tan , Keshab K. Parhi , Yingjie Lao

In recent years, several encryption algorithms have been proposed to protect digital images from cryptographic attacks. These encryption algorithms typically use a relatively small key space and therefore, provide safe, especially if they…

Cryptography and Security · Computer Science 2012-09-24 Ahmed Bashir Abugharsa , Abd Samad Bin Hasan Basari , Hamida Almangush

The simple security property in an information flow policy can be enforced by encrypting data objects and distributing an appropriate secret to each user. A user derives a suitable decryption key from the secret and publicly available…

Cryptography and Security · Computer Science 2015-05-01 Jason Crampton , Naomi Farley , Gregory Gutin , Mark Jones

To address the risks of increasingly capable AI systems, we introduce a hardware-level off-switch that embeds thousands of independent "security blocks" in each AI accelerator. This massively redundant architecture is designed to prevent…

Cryptography and Security · Computer Science 2025-09-10 James Petrie

We consider the problem of designing secure and private codes for distributed matrix-matrix multiplication. A master server owns two private matrices and hires worker nodes to help compute their product. The matrices should remain…

Information Theory · Computer Science 2022-02-15 Christoph Hofmeister , Rawad Bitar , Marvin Xhemrishi , Antonia Wachter-Zeh

Confidentiality and Integrity are two paramount objectives in the evaluation of information and communication technology. In this paper, we propose an arithmetic approach for designing asymmetric key cryptography. Our method is based on the…

Cryptography and Security · Computer Science 2020-05-18 Md. Helal Ahmed , Jagmohan Tanti , Sumant Pushp
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